海员分哪些级别？乙类水手比丙类好在哪？（海员知识问答2023版_932期）
https://onvideo.ssrcdn.com/bs2/onVideo/skyfall/media/34252206656022761089524.mp4 腾讯https://v.qq.com/x/page/p35025gvc09.html
公众号
https://mp.weixin.qq.com/s/DwUDEQEWaiDn2EzwiKSsCQ
今日头条
https://www.ixigua.com/i7205865994294657570/
百家号
审核中
美篇
https://www.jianpian.cn/a/8tvdxvs
一点号
https://www.yidianzixun.com/article/V_1am7gI9o
优酷
https://v.youku.com/v_show/id_XNTk0ODYzMTg0NA==.html
56视频
http://www.56.com/u33/v_MTgyMzk1MzM0.html
哔哩哔哩
https://www.bilibili.com/video/BV1Qv4y1b7B8/
搜狐
https://tv.sohu.com/v/dXMvMTg5NTY1NTI1LzQyNjgxMDg4OC5zaHRtbA==.html
爱奇艺
https://www.iqiyi.com/v_1paxj2sbcbs.html
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